def multiple_table():

    """
    1*1 = 1
    1*2 =2 2*2 =4
    1*3 =3 2*3 5 3*3 9
    """
    row = 1
    while row <= 9:
        col = 1
        while col <= row:
            # print("%d * %d = %d "% (col, row, col * row), end="")
            print("%d * %d = %d "% (col, row, col * row), end="\t")
            col += 1
        # print("第%d行" % row)
        print("")
        row += 1
